The plort market is a network of buyers and sellers of plorts across the galaxy. Ranchers use plort market machines on their ranch to send plorts to the market for sale. Ranchers are paid immediately when depositing plorts at the plort's current market value.
Plort market values fluctuate and some of the more savvy ranchers will hoard certain plorts for days when sale prices are high, especially rare plorts. - Slimepedia
The player needs to shoot the plorts into the hole in of machine in order to sell them. In the process, they lose the plort but they gain newbucks in return. Prices of plorts fluctuate daily. This happens at 12 AM in-game time, when the plort market will be offline for a couple of in-game minutes. The fluctuation is based on how much the player has sold with a little randomisation but they are always based on the plort's original value.
Plort values (Adventure mode)
The amount plorts are worth on the first day of Adventure mode differ from save file to save file.
This data is collected by the slime rancher wiki community. Providing the math the game uses is appreciated, to make this table accurate.
Plort values (5-day rush mode)
The amount plorts are worth in the 5-day rush mode are always the same, and never change from day to day.